.active{
    color: red;
}
.tabbar{
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #fff;
    line-height: 50px;
    height: 50px;
    text-align: center;
}
.tabbar ul{
    display: flex;
    list-style: none;
}
.tabbar li{
    flex: 1;
}